Apparatus for the evaporation of liquid dairy products



Dec. A3, 1940- J. GATzwElLE-R 2,224,076

APPARATUS FOR THE EVAPORA'IIION OFIJIQUID DAIRY PRODUCTS Filed oct. '7. 193s `-fwvemar .7a.refgafwezler Parli, 4 I

Patented Dec.l '3, 1940 APPARATUS FOR THE EVAPORATION F LIQUID DAIRY PRODUCTS Josef Gatzweiler, Aachen, .Germany Application October 7, 1938, Serial No. 233,879 In Germany April 12, 1937 2 Claims.

This invention relates to an apparatus for the evaporation of liquid dairy products such as milk, skim-milk, butter-milk, whey or the like.

Among other advantages the invention has those of enabling the evaporationor concentration of liquid dairy products at comparatively low costs, with high efficiency,` with simple apparatus, and with relatively less expenditure of heat.

A further object of the invention is to obtain new products from liquid dairy products hithersolidied milk may be produced from milk in a a novel way. n

With the process according to the invention skim-milk or butter-milk maybe concentrated 25 in a novel way to a portion of its volume and thereby a new product is obtained; which is especially adapted to be used as food for calves or the like, poultry, a. s. o.

Furthermore, with the process according to 30, the invention new products may be obtained by concentrating whey up to a portion of its natural volume and such products may be used instead of skim-milk and they are especially,adapt ed as a food for calves or the like. i.

35 In the embodiment of the apparatus `shown in Figs. 1 and 2 32 denotes the tank containing the liquid dairy products, 33 the bottom of this tank, 44 an electric heating plate and 34 a. draincock. The tank 32 is mounted on a support 35.

40 A blower 36 driven by a motor 41 is also mounted on this support 35. The blower 36 is con nected by a pipe 31 to a vertical pipe 33,'mounted in the bottom o! the tank 32, said pipe 33 extending up to the upper end of the tank 32.

45 An electric heating spiral 33 is mounted in the pipe 31. Rotatably mounted concentric'ally on (Cl. S-16) the upper end of the vertical pipe 38 is a pipe 40 closed at the upper end and lower end. The wall of said pipe 40 is spaced from the wall of the pipe 38. Horizontal hollow arms 4I are coni nected to the lower end of the pipe 40 said arms 5 4| having nozzles 42 being directed downwardly in an oblique direction. Furthermore, iioats 43 floating on the liquid in the tank 32 are also fastened to the lower end of the pipe 40. .The gas under pressure flows from the blower 36 10 through the pipes 31, 38, 40, arms 4I and nozzles 42 into the liquid. By the reaction of the gas under pressure iiowing out from the nozzles 42 the pipe 40, the arms 4t and the floats 43 are rotated, thereby dividing the froth produced on 15 the surface of the liquid. The heating plate 44 and the heating spiral 39 are connected to a source of electric current 45.

What I claim as new and desire to secure by Letters Patent of the Unitedl States is:

l. Apparatus of the class described comprising a tank adapted to contain the liquid products, a vertical pipe ior supplying gas under pressure extending through the bottom of the tank beyond the surface of the liquid contents and'25 being open at the upper end, a pipe closed at its upper end being concentrically and rotatably s mounted on said vertical pipe and having radial hollow arms providedwith small pipes immersing in the liquid at an angle to the vertical plane, said rotatable pipe and arms being supported by oats iioating on the liquid contents and means for heating the liquid dairy products.

2. Apparatus of the class described, comprising a tank adapted to contain the liquid products, a vertical pipe for supplying gas under pressure extending through the bottom ofthe tank beyond the .surface of the liquid contents and being open at the upper end, a pipe closed at its upper end being concentrically mounted on said vertical pipe and having radial hollow arms provided with small pipes immersing in the liquid, said pipeand arms being supported by oats oating on the liquid contents. and means for heating the vliquid products. 45

JOS.I GATZWEIIER. 

